Home / 2,718.30-4,079.37-1,403.58

Finding the Fourth Proportional to 2,718.30, 4,079.37 and 1,403.58

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Solution

The fourth proportional to 2,718.30, 4,079.37 and 1,403.58 is: 2,106.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.30 : 4,079.37 = 1,403.58 : x
  2. Step 2: Convert to fraction form
    2,718.30/4,079.37 = 1,403.58/x
  3. Step 3: Cross multiply
    2,718.30x = 4,079.37 × 1,403.58
  4. Step 4: Simplify right side
    2,718.30x = 5,725,722.14
  5. Step 5: Solve for x
    x = 5,725,722.14/2,718.30
  6. Step 6: Final answer
    x = 2,106.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.